Orhan Uysal

• Username: 6★osmanorhan
• Country:  Turkey
• Student/Professional:Student
• Institution:Bilkent University Ankara, Turkey
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 23

Current Ratings Graph Old Ratings Graph

2300 (-14)RatingProvisional
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August Lunchtime 2020 Division 1(2020-08-29 22:30:00)

Global Rank:   79

Cheated in:   

Ratings System Update

(2020-08-29 22:30:00)

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2300 (+65)RatingProvisional
Rating i Provisional Rating, click to know more

August Lunchtime 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   79

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Practice Paths (0)

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Contests (23)

October Cook-Off 2014

Walk on the Axis, Mahesh and his lost array, The Army

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Digit Jumps

January Challenge 2015

One Dimensional Kingdoms, Gcd Queries, Sereja and Votes, Chef and Stones, Queries on the String

March Challenge 2015

Count Substrings, Chef and Notebooks, Chef and Problems, Sereja and Random Array, Devu and his Class, Sign Wave

April Challenge 2015

Broken Telephone, Chef and Piano Scales, Inversion sorting, Chef and Interview, Chef and Array, Count Sequences

August Challenge 2015

Way Out, Aditi and Magic Trick, Chef and insomnia

September Challenge 2015

Nikitosh and xor

November Challenge 2015

Ingredients

March Cook-Off 2015

How to Minimize a String, How to Repaint a Fence

April Cook-Off 2015

Lucky Fives, Version Control System, Equality, Taxi Driver

July Cook-Off 2016

Chef and Proportion, Chef and Numbers

December Challenge 2017

Chef and Hamming Distance of arrays, Red and blue points, Penalty Shoot-out, Chef And Easy Xor Queries, Chef, Leonardo And Queries, Santa Delivering Problem, Total Diamonds, Chef and Universe, Chef and Direction, Chef And his Cake

November Lunchtime 2017

Smart Strategy, Shuffling, L-R queries, Strange Queries

January Challenge 2018

K-Concatenation, Partition the numbers, String Merging, Rectangle, Maximum Score, Killjee and k-th letter , A humongous Query, Killing Monsters

January Lunchtime 2018

Chef and Game with Sequence, Chef and Average on a Tree, Chef and Escaping from the Labyrinth

February Challenge 2018

Chef And Land Labeling, Permutation and Palindrome, (Challenge) Biased Committee, Car-pal Tunnel, Points Inside A Polygon, Chef And The Patents, Chef And His Characters, Lucas Theorem, Broken Clock, Chef and odd queries

September Lunchtime 2018 Division 1

Biased Judgement, Opposite Cites, Chef Restaurant , Match the Streams

August Cook-Off 2019 Division 1

Rich Substrings, Warriors

September Lunchtime 2019 Division 1

All Substrings, Ice Cream Queue, Treeversion, Find the Sum

January Lunchtime 2020 Division 1

Construct Array, Under the Tunnels

August Lunchtime 2020 Division 1

Game on a Strip, Counting Graphs, Alien Invasion

Total Problems Solved: 113